Get file name without extension in Python

Question

If I have a file name as one of the following:

1.1.1.1.1.jpg 1.1.jpg 1.jpg 

How can I get only a file name without extension? Was regular expression appropriate?

Answer 1

In most cases, you should not use regex.

 os.path.splitext(filename)[0] 

This will also correctly handle the file name, e.g. .bashrc , keeping the entire name.

Answer 2

 >>> import os >>> os.path.splitext("1.1.1.1.1.jpg") ('1.1.1.1.1', '.jpg') 

Answer 3

If I had to do this with a regex, I would do it like this:

 s = re.sub(r'\.jpg$', '', s) 

Answer 4

No need for regular expression. os.path.splitext is your friend:

 os.path.splitext('1.1.1.jpg') >>> ('1.1.1', '.jpg')